Just got a 2.76 sc pulley put on. Do I need colder plugs?

Machx2

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Was wondering with just a 2.76 pulley, cai, and full exhaust if I need to get new plus asap or will it be fine with the stock ones?
 

04MystiCobra

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Change the plugs. I went through the same thing. Just did the 2.76 and she rattled. After changing the plugs all was good again. Try some NGK TR6 plugs. Inexpensive and a great plug for our cars.
 

707svt

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Change them, I just put my pulley on left the stk plugs and at WOT it would studer,after putting the NGK TR6 runs like stk but with alot more power and no studering actually u have to change them if not you will be blown out spark in boost. Just get the TR6s there good up to 16-17lbs TR7s are for beyond that.
 
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jm@ReischePerf

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It's a gap issue, if you want to run higher than stock boost levels the gap must be reduced to prevent spark blowout.
 

707svt

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I have mine down to 0.35 or so how far down can I go, is lower better cause I get alittle studer still in high boost prob some blowout.
 

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